15KP24 Equivalent & Substitute Parts

Part Overview

The 15KP24 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 24V reverse standoff voltage with a maximum clamping voltage of 42.53V at peak pulse current, rated for 15kW peak pulse power dissipation. The device is housed in a P600 axial through-hole package and operates across a temperature range of -55°C to 175°C.

The 15KP24 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

15KP24

Littelfuse Inc.In Stock: 108815KP24 Datasheet

Current PartRFQ

3KP24A-TP

Micro Commercial CoIn Stock: 16613KP24A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 15KP24 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Unidirectional channel configuration (1 channel required)
• Reverse standoff voltage: 24V nominal
• Zener diode type classification
• General-purpose transient voltage protection application class
• Operating temperature range: -55°C to 175°C minimum

Mechanical Compatibility Criteria:

• Through-hole mounting type
• Axial package orientation

Compliance Requirements:

• ROHS3 compliance status

The 3KP24A-TP from Micro Commercial Co meets these substitution criteria. Both devices share identical reverse standoff voltage (24V), unidirectional zener topology, through-hole axial packaging, and ROHS3 compliance. The substitute maintains functional equivalence within the specified parameter envelope for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

The 3KP24A-TP is an active, in-stock substitute for the obsolete 15KP24. Both components maintain ROHS3 compliance and identical operating temperature specifications (-55°C to 175°C). The substitute shares the same 24V reverse standoff voltage and unidirectional zener topology, ensuring functional compatibility for general-purpose transient voltage suppression.

The 3KP24A-TP is supplied in Cut Tape (CT) packaging and features an R-6 axial package variant. The component is currently in active production status with confirmed inventory availability (1559 pcs), providing supply chain continuity for replacement and new production applications.

Frequently Asked Questions (FAQ)

Q: Can the 3KP24A-TP directly replace the 15KP24 in existing designs?

A: The 3KP24A-TP is electrically equivalent for general-purpose TVS applications, sharing the same 24V reverse standoff voltage, unidirectional zener configuration, and operating temperature range. Both components are through-hole axial devices. Physical package dimensions differ (P600 vs. R-6), requiring verification of PCB footprint compatibility before implementation.

Q: What are the key differences between these two parts?

A: The primary differences are product status (15KP24 is obsolete; 3KP24A-TP is active), peak pulse power rating (15kW vs. 3kW), clamping voltage (42.53V vs. 38.9V), and package designation (P600 vs. R-6). The breakdown voltage minimum also differs slightly (25.23V vs. 26.7V).

Q: Are both parts ROHS3 compliant?

A: Yes, both the 15KP24 and 3KP24A-TP are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for these TVS diodes?

A: Both components operate across -55°C to 175°C junction temperature (TJ), providing equivalent thermal performance for industrial and commercial applications.

Q: Does the package change affect circuit board design?

A: Yes. The 15KP24 uses a P600 axial package, while the 3KP24A-TP uses an R-6 axial package. PCB footprint dimensions and lead spacing must be verified for compatibility. Consult manufacturer datasheets for precise dimensional specifications before layout finalization.